Auger-bit



(No Model.)

P. T. WYCKOFF.

AUGER BIT.

Patented Ma. l2, 1889.

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lhvTTnn STTaTns FFATnN-T OFFICE.

FRANK T. V'YCKOFF, OF VILLIAMSPORT, PENNSYLVANIA.

AUGER-BIT.

SPCIFICATION forming part of Letters Patent No. 399,595, dated March 12, 1889.

Application tiled September 22, 1888. Serial No. 286,068. (No model.)

To @ZZ when?, may concern:

Be it known that I, FRANK T. WYcKoFF, a

citizen ot the United States,and a resident of \Villiamsport, inthe county of Lycoming and State of Pennsylvania, have invented certain new and useful Improvements in Auger-Bits; and I do hereby declare that the following is a full., clear, and exact description of the invention, which Awill enable others skilled in the art to which it appertains to make a-nd use the same, reference being` had to the accompanying drawings, which form apart of this specification.

This invention relates to augerebits, and more particularly to that class ot' auger-bits used for boring out pump-stocks and wooden water-pipes.

The Objectis to producean auger-bit which shall be of such construction thatrit will follow a small opening previously made in a )ieee ot' wood,thereby enaliiliilg the operator t0 drill any desired hole and of any desired length with accuracy and ease.

1With these objects in view the invention consi sts in the imp roved ci m struction and combination of parts of an auger-bit, as will be hereinafter fully described in the specification, illustrated in the drawings, and pointed out in the claims.

In the accoinpanyiiigdrawings, forming partoi this speciiication, and in whichlike letters ot reference indicate corresponding parts, I have illustrated three forms of auger-bits, illustrating three diiierent methods of carrying my invention into effect, although there are many other ways of obtaining the same result without departing from the principle involved therein, and in these drawings-V Figure l is a perspective view of my improved auger-bit. Fig. 2 a vertical sectional view of the same. Fig. is a top plan view ci' the cutter with the leader removed. Fig. e is a perspective view ot the bolt for holding` the leader in place upon the cutter.

Referring to the drawings, A designates the auger-bit, consisting oi two portions, l and 2, the upper portion, 1, being the leader and the lower portion, i?, the cutter, to which the leader is secured. The leader, as will be observed, is made cone-shaped and is provided with three openings, the center opening, 3, being designed for the reception of the bolt i, for holding the same in place upon the cutter, and the two side openings, 5, being designed to form euttingedges for the leader, which is done by grinding or cutting away part of the metal of the leader, as shown at G, so as to produce this result, the cutting-edge being shown at 7 on each side of the cutter and opposite to the openings S, which are engaged by bolts 9, for additionally bracing and securing the leader upon the cutter.

The cutter 2 is constructed of the saine metal as the leader-that is, of steel-and each side is cut out to form an opening, 10. At the point where the leader is connected to the cutter formed a cutting-shoulder, 11, which aligns with the cutting-edge 7 of the leader. The edges 10 are also ground to form cutting-edges, thus forming a cutting-edge which entends from the leader to the bottom of the opening 10, thus forming a continuous cuttingedge from the top of the leader to a point near the bottoni ot' the cutter. rlhe inner surface of the lower portion of the cutter is provided with screwthreads l2, by means of which it may be secured to the auger-bar.

Having now described the diiterent parts of my device,l will proceed to show its method ot operation.

Then it is desired to bore out a piece of wood, say, four inches square, with an opening two and one-half inches in diameter, it is necessary that the auger-bit should penetrate the wood exactly in the center, so that the portion remaining on each side of the opening will be of the same thickness. In order th accomplish this result a small auger is first used, so as to torni an opening for the leader, and where the piece of wood is ext-ra long the boring will have to be done from both ends, so as to meet in the center. y The hole thus bored should be equal to the size of the top of the leader. The leader is then inserted in the opening and the auger is operated, and bv reason of the tapered shape ot the leader it will follow the smaller opening and will not be thrown out of line, but will drill perfectly straight. There larger openings are to be made, the saine method is adopted as in the case just described.

It will thus be seen that although this pe- IOO culiar auger-bit is exceedingly simple of Voonstruction it will be found highly eficient and durable in use and may be constructed at but a slight expense.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

I. An auger consisting of a cutter having cutting-edges and a cutting-shoulder and an opening through the shoulder, a leader on the shoulder having cutting edges in its sides aligning with the cutting-edges of the cutter Wand a threaded opening through its center, and a bolt extending through the opening in the cutter and engaging the threaded opening in the leader, substantially as described.

FRANK T. WYYCKOFF.

Vitnesses:

GEO. S. RANGER, C. A. BOWMAN. 

